→ ashurali:使用 BE 做為be動詞是個避開單複數的好方法 :p 03/16 13:31
The central frequency of many 3G wireless systems
will be used to be the center of a spreaded spectrum via
various spread-spectrum techniques.
請問改成
The central frequency of many 3G wireless systems are
the center of a spread spectrum via various spread-spectrum techniques
正確嗎
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